I washed the sheet before using and dried in the dryer.  It did not come out smooth it was very wrinkled looking.  I do not iron sheets so it stayed that way.  The sheet is soft and keeps you cool.  I only have the top sheet but would be interested in having a complete set to try.  A Thank You note was included in the packing.  It is very well packed inside a cloth bag and it was a little difficult getting out.  As I said the wrinkles do not bother me its the feel and comfort that matters